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3 years ago

Solve (x + 2 < 5) ∩ (x - 7 > -6).

Mathematics

2 answers:

IceJOKER [234]3 years ago

8 0

Answer:

Assuming b

Step-by-step explanation:

the person above said it was b so

garri49 [273]3 years ago

3 0

Let $A=x+2\lt5, B=x-7\gt6$ .

Simplifying both you get $A=x\lt3,B=x\gt1$ .

The set conjunction is $A\cap B=1\lt x\lt3$ .

So the answer is B.

Hope this helps.

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1/4(z +3z)+ 7=−z + 1 please help with this ive been stuck

madam [21]

First, simplify the parenthesis. You’ll get:
1/4(4z)+7=-z+1

Then multiply 1/4 by 4z. You’ll get:
z+7=-z+1

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3 0

3 years ago

18000 divided by 67= ?

Greeley [361]

Answer:

18000/67 是 268.657

希望有帮助:)

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

This circle is centered at the origin, and the length of its radius is 8. What is

Anton [14]

Answer: The equation of a circle with center (h,k) and radius r is given by (x−h)2+(y−k)2=r2 . For a circle centered at the origin, this becomes the more familiar equation x2+y2=r2

Step-by-step explanation:

5 0

3 years ago

Find the value of n so that the expression is a perfect square trinomial and then factor the trinomial.

Anna007 [38]

The correct expression is (a) n = 100; (x + 10)^2

<h3>How to determine the value of n?</h3>

The expression is given as:

x^2 + 20x + n

Take the coefficient of x

k = 20

Divide by 2

k/2= 10

Square both sides

(k/2)^2 = 100

The above value represents the value of n

i.e.

n = 100

So, we have:

x^2 + 20x + 100

Expand

x^2 + 10x + 10x + 100

Factorize

x(x + 10) + 10(x + 10)

Factor out x + 10

(x + 10)^2

Hence, the correct expression is (a) n = 100; (x + 10)^2